View Compilation Error

0_0_13930831_14767.cpp: In function 'void directed_mst()':
0_0_13930831_14767.cpp:61:36: error: invalid initialization of reference of type 'int&' from expression of type 'int64 {aka long long int}'
    int &u=e[i].u,&v=e[i].v,&d=e[i].dis;
                                    ^